| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.drill.exec.physical.base; |
| |
| import com.fasterxml.jackson.annotation.JsonIgnore; |
| import org.apache.drill.common.graph.GraphVisitor; |
| import org.apache.drill.exec.ops.QueryContext; |
| import org.apache.drill.exec.planner.cost.PrelCostEstimates; |
| import org.apache.drill.exec.record.BatchSchema.SelectionVectorMode; |
| |
| import com.google.common.base.Preconditions; |
| |
| public abstract class AbstractBase implements PhysicalOperator { |
| |
| public static long INIT_ALLOCATION = 1_000_000L; |
| public static long MAX_ALLOCATION = 10_000_000_000L; |
| |
| protected long initialAllocation = INIT_ALLOCATION; |
| protected long maxAllocation = MAX_ALLOCATION; |
| |
| protected final String userName; |
| private int id; |
| private PrelCostEstimates cost = PrelCostEstimates.ZERO_COST; |
| |
| public AbstractBase() { |
| userName = null; |
| } |
| |
| public AbstractBase(String userName) { |
| this.userName = userName; |
| } |
| |
| public AbstractBase(AbstractBase that) { |
| Preconditions.checkNotNull(that, "Unable to clone: source is null."); |
| this.userName = that.userName; |
| } |
| |
| @Override |
| public void accept(GraphVisitor<PhysicalOperator> visitor) { |
| visitor.enter(this); |
| if (this.iterator() == null) { |
| throw new IllegalArgumentException("Null iterator for pop." + this); |
| } |
| for (PhysicalOperator o : this) { |
| Preconditions.checkNotNull(o, String.format("Null in iterator for pop %s.", this)); |
| o.accept(visitor); |
| } |
| visitor.leave(this); |
| } |
| |
| @Override |
| public boolean isExecutable() { |
| return true; |
| } |
| |
| @Override |
| public final void setOperatorId(int id) { |
| this.id = id; |
| } |
| |
| @Override |
| public int getOperatorId() { |
| return id; |
| } |
| |
| @Override |
| public SelectionVectorMode getSVMode() { |
| return SelectionVectorMode.NONE; |
| } |
| |
| @Override |
| public long getInitialAllocation() { |
| return initialAllocation; |
| } |
| |
| @Override |
| public PrelCostEstimates getCost() { |
| return cost; |
| } |
| |
| @Override |
| public void setCost(PrelCostEstimates cost) { |
| this.cost = cost; |
| } |
| |
| @Override |
| public long getMaxAllocation() { |
| return maxAllocation; |
| } |
| |
| /** |
| * Any operator that supports spilling should override this method |
| * @param maxAllocation The max memory allocation to be set |
| */ |
| @Override |
| public void setMaxAllocation(long maxAllocation) { |
| this.maxAllocation = maxAllocation; |
| } |
| |
| /** |
| * Any operator that supports spilling should override this method (and return true) |
| * @return false |
| * @param queryContext |
| */ |
| @Override @JsonIgnore |
| public boolean isBufferedOperator(QueryContext queryContext) { return false; } |
| |
| @Override |
| public String getUserName() { |
| return userName; |
| } |
| } |